diff --git a/manifests/cargo-deb.json b/manifests/cargo-deb.json
index ab6a188a..53db3601 100644
--- a/manifests/cargo-deb.json
+++ b/manifests/cargo-deb.json
@@ -12,6 +12,12 @@
   "3": {
     "version": "3.7.0"
   },
+  "3.8.0": {
+    "x86_64_linux_gnu": {
+      "etag": "0x8DF0876908E85D5",
+      "hash": "c6bd0a4affaa232814cc615b2597457f1d44fdfe1c8ebd643f3a491a1f244040"
+    }
+  },
   "3.7": {
     "version": "3.7.0"
   },